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坡地灌水管灌溉 这是俄罗斯研究的一种田问灌水方法。管长一般为150—200米,管径145毫米左右。各节管子之间用变径法接连,这样能保证各段孔口流量均匀,使水由管壁孔口流入坡地的灌水沟中。 波涌灌溉法 这是美国推出的一种灌水方法,即采用加大水流量的方法把水灌到部分沟长时停止供水,稍过一段时间再加大流量供水,这样时断时续,使水流呈波涌状推进。 绳索控制灌溉 这是美国研制的一种地面灌水系统。在田间高处安装一直径约60厘米的竖井,以接受来水和向输水管供水。在输水管灌水方向一侧,开有供水孔,管内有
Sloping irrigation pipe irrigation This is a Russian research field irrigation method. Tube length is generally 150-200 meters, diameter 145 mm or so. Between the sections of the pipe diameter method used in succession, so that each section of the orifice flow rate is uniform, the water flow from the wall orifice into the slope of the irrigation ditch. Surge irrigation This is the United States introduced a method of irrigation, that is, by increasing the flow of water to some irrigation ditch long stop water supply, and then increase the flow of water for a period of time, so intermittent, so that The current is surging forward. Rope control irrigation This is a ground irrigation system developed by the United States. Install a shaft about 60 cm in diameter in the field to accept incoming water and supply water to the water pipe. In the side of the water pipe irrigation direction, open a water hole, there are tubes